Hi Richard,
Am 18.02.2012 um 01:28 schrieb Maes, Richard:
I am using gridengine to load tests on to an Ixia. Only one test can
> run at time so I configured the queue to resource quota configuration
> with a rule that says limit users * queues lt_np_13 to slots = 1
as it's for all users, the "users *" can be left out here.
> This has worked fine for years.
>
> Now, however I have many Ixia blades and I still want to use gridengine
> to distribute jobs to the cluster nodes, but ultimately, there can only
> be one test running per ixia blade.
I don't understand the detailed layout of your cluster. There are dedicated
nodes connected to each ixia blade?
limit hosts @ixia1 to slots=1
limit hosts @ixia2 to slots=1
limit hosts @ixia3 to slots=1
with three hostgroups would do? Or are all nodes connected with IXIA and could
use any, but only one as you wrote:
Three PEs with a slot limit of one inside the PE could work, and this could be
requested by a wildcard:
$ qsub -pe ixia* 1 job.sh
The PE name you get inside the job and can select the proper config file. If
these are already parallel jobs, this could be put in an RQS then:
limit pes {ixia1,ixia2,ixia3} to jobs=1
("jobs" complex setup as a JOB consumable from an arbitrary high value in the
global configuration)
-- Reuti
> I think what I need to do is to use a consumable attribute. A command
> like qsub -l ixiablade1=1 myjob.sh, will take a consumable resource for
> ixiablade1.
> However, lets' say I have three ixia blades, ixiablade1, 2 and 3.
> Somehow I need to have a way of saying you can take ixiablade1 or you
> can take ixiablade2 or you can take ixiablade3, but you can only take
> one. Presumably, tests will have to wait until one of the three
> consumables is available.
>
>
> Here is a diagram
>
> [queuemaster]
> [wasim01] <-----NETWORK -----> IXIA[wa-ixia-01]
> [wasim02] [slot 1 - ports 1 -4] <--
> Direct Ethernet x 4 --> DUT 1
> [wasim03] [slot 2 - ports 1 -4] <--
> Direct Ethernet x 4 --> DUT 2
> [wasim04] [slot 3 - ports 1 -4] <--
> Direct Ethernet x 4 --> DUT 3
> [wasim05]
> [wasim06]
> [wasim07]
> [wasim08]
>
> For example, I may have 100 individual tests queued to run on the grid,
> across 8 different machines, and because of resource quota or
> consumables, only three jobs can run at a time. When a job moves from
> the waiting to running, it will be because one of the consumables was
> available (and now taken again). When the test begins execution, the
> test will examine the environment to determine which consumable it was
> given and use that to select the appropriate config file (For slot1.cfg,
> slot2.cfg or slot3.cfg) which defines port connections and other DUT
> related configuration information.
>
> Any thoughts would be appreciated.
> Thanks
> Rich
>
>
>
>
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